English Words: O
15,494 words · Page 195 of 310
A small particle, composed mainly of calcium carbonate, found in the inner ear of vertebrates, being part of the balance sense.
A story-based video game in which the player attempts to establish a romantic relationship between the female player character and one of several male characters.
A family of pitches that can all be expressed as ratios with a specified fixed tone, such that all ratios have the same denominator.
Any of a group of transmembrane proteins associated with otoconia and with sensing the sour taste
Any of the fish of the Otophysi series within the Ostariophysi superorder, also known as the Otophysa in some classifications.
Of or pertaining to a connection between the swim bladder and inner ear in certain species of fish.
A procedure of plastic surgery used to change the appearance or shape of a person’s ears.
A type of vector field defined on an open set of such that every vector in the field is tangent to the corresponding point in the set.
A doctor specializing in otorhinolaryngology, the study of the ear, nose, and throat.
Spelling & Dictionary Insight
The English alphabetical index for the letter O contains 15,494 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 310 pages, and you are currently viewing page 195. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.
On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.
For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "O" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.